chore: enable buffer in prod env

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (4fabaf8) 69.52% compared to head (fd936a6) 69.52%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #102 +/- ## ======================================= Coverage 69.52% 69.52% ======================================= Files 11 11 Lines 1201 1201 Branches 365 365 ======================================= Hits 835 835 Misses 336 336 Partials 30 30 ``` | [Files](https://app.codecov.io/gh/midwayjs/logger/pull/102?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=midwayjs) | Coverage Δ | | |---|---|---| | [src/factory.ts](https://app.codecov.io/gh/midwayjs/logger/pull/102?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=midwayjs#diff-c3JjL2ZhY3RvcnkudHM=) | `80.85% <ø> (ø)` | |

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